| 摘要 |
A method and apparatus for removing an obstruction from a wall of a vessel through which blood normally flows in a given direction, at a location downstream of a branch point where a second blood vessel branches off from the first blood vessel, by: blocking blood flow in the first blood vessel at a point upstream of the branch point to cause blood to flow through the first blood vessel past the obstruction opposite to the given direction and then into the second blood vessel; and removing material from the obstruction, trapping the removed material, and withdrawing the removed material from the blood vessel.
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